Dynamic command notch filter
US12372951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2022 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Feb 2, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41032
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system and method for reducing mechanical oscillations in a multi-axis control system provides a first command for a dynamic notch filter at a first update rate to multiple motor drives. Each motor drive is operatively connected to a motor for an axis in the multi-axis control system. Each motor drive receives a second command for desired operation of the motor at a second update rate. Operation of the dynamic notch filter in each motor drive is changed as a function of the first command at the first update rate, and each motor drive generates a desired output voltage for desired operation of the motor at a third update rate. The third update rate is faster than the second update rate, the second command is passed through the dynamic notch filter to generate a filtered command, and the desired output voltage is generated as a function of the filtered command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.